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<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css/style.css">
</head>
<body>
<div id="nav">
    <h2 class="title">全部商品分类</h2>
    <ul>
        <li>
            <a href="#">家用电器</a>&nbsp;&nbsp;
            <a href="#">手机</a>&nbsp;&nbsp;
            <a href="#">数码</a>&nbsp;&nbsp;
        </li>
        <li>
            <a href="#">电脑</a>&nbsp;&nbsp;
            <a href="#">办公</a>&nbsp;&nbsp;
        </li>
        <li>
            <a href="#">家具</a>&nbsp;&nbsp;
            <a href="#">家装</a>&nbsp;&nbsp;
            <a href="#">厨具</a>&nbsp;&nbsp;
        </li>
        <li>
            <a href="#">服饰鞋帽</a>&nbsp;&nbsp;
            <a href="#">个性化妆</a>&nbsp;&nbsp;
        </li>
        <li>
            <a href="#">礼品箱包</a>&nbsp;&nbsp;
            <a href="#">钟表</a>&nbsp;&nbsp;
            <a href="#">珠宝</a>&nbsp;&nbsp;
        </li>
        <li>
            <a href="#">食品饮料</a>&nbsp;&nbsp;
            <a href="#">保健食品</a>&nbsp;&nbsp;
        </li>
        <li>
            <a href="#">彩票</a>&nbsp;&nbsp;
            <a href="#">旅行</a>&nbsp;&nbsp;
            <a href="#">充值</a>&nbsp;&nbsp;
            <a href="#">票务</a>
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